If you're the type of person that is bothered by unidentifiable noises, I'd say that riding a Harley is not for you. lol. You're probably better off on a Goldwing. By nature, the design of the Harley motor is just incredibly noisy, especially in the heads. Then put yourself behind a big fairing with those 2 thumping cylinders right below you and you'll be able to hear every little nuance of that valve train.

Isn't it amazing!! The person that never has the fortitude to pursue his own dreams, will be the first to try and discourage you from pursuing yours.